Sectioned Rim: Wear guide

Splatter Paint · Jan 3, 2013

My 16 year old Mavics 138s finally failed cycling to work today, a 16" section of sidewall sheared off the rear rim and got wedged in the frame. The tube popped with an almightly bang :shock: I use the same bike for my son's bike seat, it could have been a nasty accident had he been on the back

Here's a shot of the sectioned rim, if other folk have failed rims can you post pictures of them them up too? It'll be a good warning to all!

SP

Dhphat · Jan 3, 2013

its always a scary moment when that happens.

N/B · Jan 4, 2013

I've stopped riding my Cannondale very recently for this reason. They make me v.nervous now. Wish Mavic still did a CD grey 26" rim with a grey braking surface.

T'boo Ted · Jan 4, 2013

it is the scariest bang when they go isn't...
its one of those things that yuo don't think about, but really should, and scares me about old bikes in general, you nevr know sometimes when a part is going to break...

Blackstar · Jan 4, 2013

Just scrapped some the other day for that reason.

The edges felt curved in...

Least you weren't hurt...

Anthony · Jan 4, 2013

Every now and again, put a ruler or other straight edge across the braking surface and estimate how deeply concave it is. Bear in mind that it was c1.7mm thick when it was new, so if it's now c1mm concave it means you've only got 0.7mm left. Then it becomes a battle between your deep inner cheapskate and your basic instinct for survival.

02gf74 · Jan 4, 2013

if you can see the tyre as it is inflated under pressure push the top of the rim outwards, then it is time to replace.

BTW- it could have been worse - cyclist have been cut quite badly with flailing rims - think Boudicca's chariot.

hamster · Jan 4, 2013

My wife blew the side off her rear Mavic 217 this morning...still, 16 years for a rim is not bad going!

Fortunately the braking surface lifted off gracefully for about 100mm, nothing dramatic.

Splatter Paint · Jan 14, 2013

Bump, now with pic of the failed rim.

SP

xerxes · Jan 15, 2013

http://www.ebay.co.uk/itm/BICYCLE-R...K_SportGoods_CyclAcces_RL&hash=item43a80867d0

Sectioned Rim: Wear guide

Splatter Paint

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Dhphat

Senior Retro Guru

N/B

Retro Guru

T'boo Ted

Blackstar

Retro Guru

Anthony

02gf74

Old School Grand Master

hamster

Retro Wizard

Splatter Paint

xerxes

Old School Grand Master

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